终于完成了全选的作业了。
**2018-12-17 19:30:15242<!DOCTYPE html>
<html>
<head>
<title>
全选
</title>
<style type="text/css">
*{padding:0px;margin: 0px;}
table{width:1200px;border:1px solid #ccc;border-collapse: collapse;}
tr th{height:30px;border:1px solid #ccc;text-align:}
tr td{height:30px;border:1px solid #ccc;text-align: center;}
.text-a{font-family: 黑体;font-size: 18px;}
.text-b{font-family: 宋体;font-size: 15px;}
.tj{text-align: right;}
button{margin-right: 10px;}
</style>
<script type="text/javascript">
function checkall(){
var checkall,item;
checkall=document.getElementById('checkall'); //获取全选框
item=document.getElementsByName("item[]")//获取单选框
for (var i = 0;i<item.length;i++) {
if(checkall.checked){
item[i].checked=true; //全选被选中的时候，单选也就被选中了。
}else{
item[i].checked=false;
}
}
}
</script>
</head>
<body>
<center>
<table>
<tr class="text-a">
<th width="80"><input type="checkbox" id="checkall" onclick="checkall()"><label for="checkall">全选</label></th>
<th width="70">姓 名</th>
<th width="40">性别</th>
<th width="80">部门</th>
<th width="120">联系电话</th>
<th width="200">EMAIL地址</th>
<th width="220">合同周期</th>
<th width="130">项目组</th>
<th width="70">状态</th>
<th width="">其他</th>
</tr>
<tr class="text-b">
<td><input type="checkbox" name="item[]"></td>
<td>令狐无忌</td>
<td>男</td>
<td>底盘</td>
<td>13900000000</td>
<td>13900000000@163.com</td>
<td>2017-01-01至2018-12-31</td>
<td>F111</td>
<td>在职</td>
<td></td>
</tr>
<tr class="text-b">
<td><input type="checkbox" name="item[]"></td>
<td>虚竹</td>
<td>男</td>
<td>CAE</td>
<td>13903300044</td>
<td>13903300044@163.com</td>
<td>2017-01-01至2018-12-31</td>
<td>H987</td>
<td>在职</td>
<td></td>
</tr>
<tr class="text-b">
<td><input type="checkbox" name="item[]"></td>
<td>长孙冲</td>
<td>男</td>
<td>电器</td>
<td>13900000002</td>
<td>13900000002@163.com</td>
<td>2017-01-01至2018-12-31</td>
<td>S431</td>
<td>在职</td>
<td></td>
</tr>
<tr>
<td></td>
<td colspan="10" class="tj">
<button>提交</button><button>重置</button>
</td>
</tr>
</table>
</center>
</body>
</html>